Derivative photocurrent spectrum of an InGaAs/GaAs strained-layer superlattice
- 9 June 1986
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 48 (23), 1606-1608
- https://doi.org/10.1063/1.96831
Abstract
We report the use of wavelength-modulated photocurrent spectroscopy to obtain detailed information on quantum well transitions in an In0.14Ga0.86As/GaAs strained-layer superlattice. The spectra are interpreted in terms of a Kronig–Penney model with literature values for offsets and deformation potentials. The effect of the test structure’s built-in electric field must be included to obtain agreement with this theory.Keywords
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